Adjustable and reversible roof and ladder scaffolding-bracket.



0. W. LEVANDER. ADJUSTABLE AND REVERSIBLE ROOF AND LADDER SGAPFOLDINGBRACKET.

APPLICATION FILED SEPT. 27, 1909. Patented June CHARLES W. LEVANDER, OFSTROMSBURG, NEBRASKA.

ADJUSTABLE AND REVERSIBLE ROOF AND LADDER SCAFFOLDING-IBRACKET.

Specification of Letters Patent.

Application filed September 27, 1909.

Patented June '7, 1910.

Serial No. 519,892.

To all whom it may concern:

Be it known that I, CHARLES WV. LEVAN- DER, a citizen of the UnitedStates, residing at Stromsburg, in the county of Polk and State ofNebraska, have invented a new and useful Adjustable and Reversible Roofand Ladder Scafiolding-Bracket, of which the following is aspecification.

It is the object of the present invention to provide a device to be usedby painters and carpenters which device may be either applied to anordinary ladder or may be disposed upon a sloping roof, it serving ineither instance to support a platform or scaffold board.

One aim of the invention is to so construct the device that it may beapplied to a ladder disposed at practically any angle against a wall ormay be mounted or disposed upon a roof sloping at practically any angle.

It is a further aim of the invention to so construct the device that notonly may it be applied to or supported from a ladder disposed at anyangle but may be so applied to a ladder regardless of the distancebetween the rungs thereof.

IVith the above and other objects in view, the invention consists in theconstruction illustrated in the accompanying drawings, in which- Figure1 is a perspective View of the device illustrating the same applied to aladder, the latter being shown in dotted lines. Fig. 2 is a similar viewshowing the same arringement for disposal upon a sloping roo- In thedrawings, the device is illustrated as embodying a platform section ormore specifically speaking, a section upon which may be disposed aplatform or scaffold board, and sections which are so connected to theplatform section and so arranged with respect thereto as to support thesame either from a ladder or upon a sloping roof.

In the drawings, the platform section of the device is illustrated ascomprising spaced parallel side bars 5 which are connected by bolt rods6 and these rods are passed at their ends through the side bars 5 insuch a manner as to support a platform or board, indicated by thenumeral 7, this board being disposed, in the present instance, upon twoof the bolt rods 6 and having a third bolt rod passing above it at apoint between the two first mentioned bolt rods. It will be understood,however, that while only three bolt rods are here shown, a greater orless number may be employed, if found expedient. At their forward ends,the side bars 5 of the platform section of the device are bent to extendupwardly and are finally bent over to afford hooks 8 which are of suchsize and are so arranged as to be readily engageable with a ladder rung.

One of the supporting sections for the platform section is indicated ingeneral by the reference character A and it is in the nature of a frameincluding side bars 9 which, at their lower ends, are pivotallyconnected to the rear one of the bolt rods 6 and at their upper ends areconnected by a cross bar, which is indicated by the numeral 10 and whichhas its ends turned at right angles and bolted to the said ends of theside bars. For a purpose which will be presently explained, the lowerends of the side bars 9 are bent forwardly downwardly, as at 11 andtheir extremities are formed with spurs 12, the bars at their said endsbeing also formed each at one lateral edge with a spur 13 which projectsapproximately at right angles from the plane of the side bars 9. Attheir upper ends, the side bars 9 are formed with off-set extensions 1 1which are also provided at their extremities with spurs indicated by thenumeral 15.

When the device is to be supported from a ladder, as for example, asshown in Fig. l of the drawings, a supporting frame is employed inaddition to the supporting frame A and this frame comprises side bars16,

connected by rods 17 and 18, the rod 17 be ing located adjacent thelower ends of the frame and the rod 18 adjacent the upper end of theframe. The upper ends of the said side bars 16 of this supplementalsupporting frame are bent to afford hooks 19.

In their rear edges, the side bars 9 of the frame A are formed with anumber of upwardly angularly extending notches 20, and aswill beobserved from inspection of Fig. 1 of the drawings, the ends of the rods17 project beyond the respective side bars 16 of the supplemental frameand are engageable in the notches 20 interchangeably, the side bars 16of this supplemental supporting frame when the extremities of the rod 17are so engaged, extending in front of the cross bar 10 and between thespurs 15 at the extremities of the off-set upper ends of the side bars 9of the frame A, the supplemen 'respect to the supportingframe A. Whenthe several sections of the device have been assembled, as abovedescribed, the hooks 8 and 19 are engaged with the run s of the ladder,as illustrated in Fig. 1 of t e drawings, and with such rungs as willresult in the platform section being supported in horizontal position.

It will be understood, of course, that in using the device in thismanner, two or more ladders are disposed against a wall and upon each ofthe ladders is arranged one of the devices in the manner abovedescribed, a platform or scaffold board being disposed upon the platformsections of the several devices and being supported thereby in ahorizontal position.

It will be readily understood from the foregoing that the supplementalsupporting frame may be easily detached from the supporting frame A andthis is done when it is desired to use the device on a sloping roof.When the device is so employed, the supporting frame A is disposed uponthe surface of the roof with the extensions 11 projecting beneathcertain shingles of the roof should the roof be of this character andwith the lateral spurs 13 biting into the shanks next beneath, also withthe spurs 15 biting into a lower portion of the roof surface. To adaptthe device for this use and to provide means for supporting the platformsection thereof in horizontal position, bars 21 are pivoted at theirupper ends to the forward one of the bolt rods 6 and at their lower endsare beveled to a point, as at 22, so .as to dig into the roof surface,they being connected and braced in parallel relation adjacent theirlower ends by a cross rod 28. Not only do the lower ends of the bars 21dig into the roof surface, as stated above, but the cross rod 23 seatsinterchangeably in the notches 20 with the supporting frame A of thedevice whereby the platform section may be positioned in a horizontalplane regardless of the angle of inclination of the roof. When thedevice is positioned upon a sloping roof it may be used as a platform tosupport a person working on the roof or several of the devicesmay bedisposed upon the roof and a platform or scaffold board may be disposedupon the platform sections of the several devices.

What is claimed is:

In a device of the class described, a platform section, means at one endof the section for supportingthe same from a ladder, a supporting frameconnected to the other end of the section and including side bars formedeach with a plurality of notches, and a supplemental supporting frameadapted at its upper end for connection with the ladder and having atits lower end a rodengageable inthe notches interchangeably.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

CHARLES l/V. LEVANDER.

Witnesses V. E. WILSON, E. A. ANDERSON.

